Three Junior Reserve Officers’ Training Corps cadets killed during last week’s mass shooting at Marjory Stoneman Douglas High School in Florida have been awarded the Medal of Heroism by the U.S. Army.

Family members of the cadets, Alaina Petty, Martin Duque and Peter Wang, will receive the medals, which are awarded only to cadets whose achievements “involved the acceptance of danger and extraordinary responsibilities, exemplifying praiseworthy courage and fortitude.” At least one of the cadets was gunned down while protecting fellow students.

It is with broken hearts that Sunrise Post 365 & Stoneman Douglas JROTC shares the loss of our soaring eagles! We honor them, and will miss their courage, tenacity, and their smiles! Cadet Peter Wang, Cadet Martin Duque, and Cadet Alaina Petty. May they always soar high! pic.twitter.com/eg0TKprzMV

Eyewitnesses say Peter, a 15-year-old freshman, spent his last moments holding a door open at the school to help others evacuate. He was wearing his gray Junior ROTC shirt at the time and will be buried in his full uniform ― along with his Medal of Heroism ― on Tuesday.

“It was an appropriate way for USMA to honor this brave young man,” West Point said in a statement. “West Point has given posthumous offers of admissions in very rare instances for those candidates or potential candidates whose actions exemplified the tenets of Duty, Honor and Country.”

Members of the Florida National Guard will attend each cadet’s funeral.

Joe Raedle via Getty Images
An American flag is carried into the funeral for Alaina Petty on February 19, 2018 in Coral Springs, Florida.

A U.S. Army spokesman told the Daily Beast the family of Alaina Petty, 14, was presented her medal at her memorial service on Monday. More than 1,500 people attended the service.

Alaina’s oldest brother Ian said his sister “will be missed terribly,” and called on others to keep her legacy alive “through small acts of kindness.”